Systems and methods for recording optical information
AssigneeMediatek Incorporation
InventorsKuo-Ding Shin, Kun-Hung Hsieh
Life of this patent
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Abstract
A system controlling recording on an optical disc is provided. A first counter performs a bit count according to provided channel bit clock signals. A second counter performs a sector count responsive to the bit count obtained by the first counter. The Land/Groove switch predicts machine uses the result of bit count and sector count to predict the land/groove switch point. The processor uses the physical ID (PID) to determine the track type of a sector at which a recording operation initiates. The power controller determines a recording power for the recording operation according to the Land/Groove switch predict machine.
Claims22
A method for recording information, comprising:
- providing an optical disc comprising a track for data recording, wherein the track comprises alternating land and groove revolutions arranged according to a preset configuration, each land and groove revolution comprises a plurality of sectors;
- providing physical ID (PID) specifying a serial number of a sector to which data is recorded;
- predict the land/groove switch point;
- and
- using predicted result to determine a recording power for the sector according to the track type thereof.
A system for controlling recording on an optical disc comprising a track for data recording, wherein the track comprises alternating land and groove revolutions arranged according to a preset configuration, each land and groove revolution comprising a plurality of sectors, the system comprising:
- a first counter performing a bit count according to provided channel bit clock signals;
- a second counter performing a sector count in response to a channel bit count obtained by the channel bit counter;
- a Land/Groove switch predict machine using the bit count to determine whether the recording operation proceeds to a following sector, and using the sector count result to predict Land/Groove switch point;
- a power controller determining a recording power for the recording operation according to the Land/Groove switch predict machine.
A system for recording on an optical disc comprising a track for data recording, wherein the track comprises alternating land and groove revolutions arranged according to a preset configuration, each land and groove revolution comprising a plurality of sectors, the system comprising:
- an optical head providing light to the optical disc, receiving reflected light from the optical disc, and providing signals according to the reflected light;
- a detector detecting the physical ID (PID) from the signals provided by the optical head;
- a controller performing a bit count according to provided channel bit clock signals, performing a sector count in response to the bit count, determining the track type of a sector at which the recording operation initiates according to the physical ID (PID), and using the bit count to determine whether the recording operation proceeds to a following sector, and predicting Land/Groove switch point according to the sector count.
Dependencies are inferred from the claim text.